CN105131655A - Nano titanium dioxide modified through liquid silicon deposition - Google Patents
Nano titanium dioxide modified through liquid silicon deposition Download PDFInfo
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- CN105131655A CN105131655A CN201510425843.0A CN201510425843A CN105131655A CN 105131655 A CN105131655 A CN 105131655A CN 201510425843 A CN201510425843 A CN 201510425843A CN 105131655 A CN105131655 A CN 105131655A
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- nano titanium
- titanium oxide
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Abstract
The invention relates to nano titanium dioxide modified through liquid silicon deposition and belongs to the technical field of powder materials. In the invention, silicon dioxide is deposited on surface of nano titanium dioxide, wherein the silicon dioxide accounts for 18-30% by mass of the nano titanium dioxide. The nano titanium dioxide modified through liquid silicon deposition is advantaged in that: (1) silicon deposition modification is carried out on surface of the nano titanium dioxide, so that the surface energy of the nano titanium dioxide is greatly reduced, thereby improving dispersibility and stability of nano titanium dioxide; (2) the nano titanium dioxide is low in raw material cost, is simple in process, is beneficial to industrial production, and is quite suitable for the fields of cosmetics, nano functional textiles, functional plastics and coatings and the like.
Description
Technical field
The present invention relates to the nano titanium oxide that a kind of liquid-phase silicone is deposition modified, belong to powder body material technical field.
Background technology
There is due to nano titanium oxide the features such as good anti-ultraviolet property, weathering resistance, chemical resistance, thermotolerance, photocatalytic, thermostability, be widely used in the industries such as pigment, rubber, plastics, papermaking, be also widely used as photocatalyst, photoelectric cell, ultraviolet screening agent etc. simultaneously.Not surface treated nano titanium oxide surface energy is higher, and surface is containing polar group hydroxyl, and therefore, nano titanium oxide easily produces reunion because of polar adsorption or moisture absorption.
The nano titanium oxide of non-surface modification as additive join in high molecular polymer prepare matrix material time, there is the technical problem that dispersion is uneven, thus the over-all properties of the nano composite material making it prepare is poor, application is limited by very large.Therefore, finishing must be carried out to nano titanium oxide, improve its dispersing property.
Summary of the invention
The object of the invention is to the problem of easily reuniting for nano titanium oxide in prior art and the nano titanium oxide providing a kind of liquid-phase silicone deposition modified, this nano titanium oxide has dispersed and stability preferably.
The technical scheme realizing the object of the invention employing is: the nano titanium oxide that a kind of liquid-phase silicone is deposition modified, described silicon-dioxide is 18% ~ 30% of nano titanium oxide quality.
The preparation process of nano titanium oxide surface deposition silicon-dioxide of the present invention is as follows:
Step 1): by nano titanic oxide impregnation in the normal hexane solvent of methyl-silicone oil, stir, obtained mixed solution;
Step 2): mixed solution obtained for step 1) is carried out evaporate to dryness, and is put in baking oven and carries out drying, be then placed in retort furnace and carry out high-temperature roasting, make methyl-silicone oil change into silicon-dioxide, namely obtained surface deposition has the nano titanium oxide of silicon-dioxide.
In step 1), described nano titanium oxide and the mass ratio of methyl-silicone oil are (0.5 ~ 1): 1, and the mass volume ratio of described methyl-silicone oil and normal hexane solvent is 1g:3mL.
In step 2) in, described carries out high-temperature roasting, and its roasting condition is: under excess oxygen, with the ramp to 500 DEG C of 10 DEG C/min, keeps 2h.
The invention has the advantages that: 1, the present invention carries out siliceous deposits modification on the surface of nano titanium oxide, greatly reduces the surface energy of nano titanium oxide, thus improve dispersiveness and the stability of nano titanium oxide.2, raw material valency of the present invention is low, and technique is simple, is beneficial to suitability for industrialized production, is highly suitable for the fields such as makeup, nano-function textile, functional plastics and coating.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.
embodiment 1
1) by 5g massfraction be 15% methyl-silicone oil be dissolved in the normal hexane solvent of 15mL, then add 2.5g nano titanium oxide, stir, obtained mixed solution;
2) mixed solution that step 1) is obtained is carried out evaporate to dryness at bath temperature 75 DEG C, and be put in baking oven and carry out drying, then retort furnace is placed in, under excess oxygen, with the ramp to 500 DEG C of 10 DEG C/min, keep 2h, make methyl-silicone oil change into silicon-dioxide, the nano titanium oxide that namely obtained surface silicon is deposition modified.
embodiment 2
1) by 5g massfraction be 20% methyl-silicone oil be dissolved in the normal hexane solvent of 15mL, then add 4g nano titanium oxide, stir, obtained mixed solution;
2) mixed solution that step 1) is obtained is carried out evaporate to dryness at bath temperature 75 DEG C, and be put in baking oven and carry out drying, then retort furnace is placed in, under excess oxygen, with the ramp to 500 DEG C of 10 DEG C/min, keep 2h, make methyl-silicone oil change into silicon-dioxide, the nano titanium oxide that namely obtained surface silicon is deposition modified.
embodiment 3
1) by 5g massfraction be 30% methyl-silicone oil be dissolved in the normal hexane solvent of 15mL, then add 5g nano titanium oxide, stir, obtained mixed solution;
2) mixed solution that step 1) is obtained is carried out evaporate to dryness at bath temperature 75 DEG C, and be put in baking oven and carry out drying, then retort furnace is placed in, under excess oxygen, with the ramp to 500 DEG C of 10 DEG C/min, keep 2h, make methyl-silicone oil change into silicon-dioxide, the nano titanium oxide that namely obtained surface silicon is deposition modified.
Each raw material that the present invention adopts:
| Material name | Specification | Manufacturer |
| Nano titanium oxide | Median size: 25nm | Self-control |
| Methyl-silicone oil | Massfraction: 15-30% | Chemical Reagent Co., Ltd., Sinopharm Group |
| Normal hexane | SILVER REAGENT | Chemical Reagent Co., Ltd., Sinopharm Group |
Claims (4)
1. the nano titanium oxide that liquid-phase silicone is deposition modified, this nano titanium oxide surface deposition has silicon-dioxide, it is characterized in that: described silicon-dioxide is 18% ~ 30% of nano titanium oxide quality.
2. a kind of liquid-phase silicone deposition modified nano titanium dioxide according to claim 1, is characterized in that: the preparation process of described nano titanium oxide surface deposition silicon-dioxide is as follows:
Step 1): by nano titanic oxide impregnation in the normal hexane solvent of methyl-silicone oil, stir, obtained mixed solution;
Step 2): mixed solution obtained for step 1) is carried out evaporate to dryness, and is put in baking oven and carries out drying, be then placed in retort furnace and carry out high-temperature roasting, make methyl-silicone oil change into silicon-dioxide, namely obtained surface deposition has the nano titanium oxide of silicon-dioxide.
3. a kind of liquid-phase silicone deposition modified nano titanium dioxide according to claim 2, it is characterized in that: the mass ratio of the nano titanium oxide described in step 1) and methyl-silicone oil is (0.5 ~ 1): 1, and the mass volume ratio of described methyl-silicone oil and normal hexane solvent is 1g:3mL.
4. a kind of liquid-phase silicone deposition modified nano titanium dioxide according to claim 2, is characterized in that: in step 2) in, described carries out high-temperature roasting, and its roasting condition is: under excess oxygen, with the ramp to 500 DEG C of 10 DEG C/min, keeps 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425843.0A CN105131655B (en) | 2015-07-20 | 2015-07-20 | The nano titanium oxide that a kind of liquid phase siliceous deposits is modified |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510425843.0A CN105131655B (en) | 2015-07-20 | 2015-07-20 | The nano titanium oxide that a kind of liquid phase siliceous deposits is modified |
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| CN105131655A true CN105131655A (en) | 2015-12-09 |
| CN105131655B CN105131655B (en) | 2017-10-24 |
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| CN201510425843.0A Active CN105131655B (en) | 2015-07-20 | 2015-07-20 | The nano titanium oxide that a kind of liquid phase siliceous deposits is modified |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603838A (en) * | 2020-11-30 | 2021-04-06 | 上海蔻沣生物科技有限公司 | Nano titanium dioxide slurry oil and preparation method and application thereof |
| CN113603961A (en) * | 2021-06-26 | 2021-11-05 | 宁波东拓塑业有限公司 | Anti-aging polypropylene, preparation process thereof and tray |
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| US5268337A (en) * | 1991-11-18 | 1993-12-07 | The Johns Hopkins University | Ceramic oxide powders and the formation thereof |
| CN1211272A (en) * | 1996-02-15 | 1999-03-17 | 罗狄亚化学公司 | Titanium dioxide particles |
| CN1384151A (en) * | 2001-04-30 | 2002-12-11 | 上海维安新材料研究中心有限公司 | Prepn process of optically active enclosed nano-level titania functional stuffing |
| CN1732235A (en) * | 2002-12-23 | 2006-02-08 | 德古萨股份公司 | Titanium dioxide coated with silicon dioxide |
| CN1800270A (en) * | 2004-12-23 | 2006-07-12 | 德古萨股份公司 | Surface-modified pyrogenically prepared titanium dioxides |
| CN103232733A (en) * | 2013-04-10 | 2013-08-07 | 雅安百图高新材料有限公司 | Nano-scale silica-coated titanium dioxide powder |
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2015
- 2015-07-20 CN CN201510425843.0A patent/CN105131655B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268337A (en) * | 1991-11-18 | 1993-12-07 | The Johns Hopkins University | Ceramic oxide powders and the formation thereof |
| CN1211272A (en) * | 1996-02-15 | 1999-03-17 | 罗狄亚化学公司 | Titanium dioxide particles |
| CN1384151A (en) * | 2001-04-30 | 2002-12-11 | 上海维安新材料研究中心有限公司 | Prepn process of optically active enclosed nano-level titania functional stuffing |
| CN1732235A (en) * | 2002-12-23 | 2006-02-08 | 德古萨股份公司 | Titanium dioxide coated with silicon dioxide |
| CN1800270A (en) * | 2004-12-23 | 2006-07-12 | 德古萨股份公司 | Surface-modified pyrogenically prepared titanium dioxides |
| CN103232733A (en) * | 2013-04-10 | 2013-08-07 | 雅安百图高新材料有限公司 | Nano-scale silica-coated titanium dioxide powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603838A (en) * | 2020-11-30 | 2021-04-06 | 上海蔻沣生物科技有限公司 | Nano titanium dioxide slurry oil and preparation method and application thereof |
| CN113603961A (en) * | 2021-06-26 | 2021-11-05 | 宁波东拓塑业有限公司 | Anti-aging polypropylene, preparation process thereof and tray |
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| Publication number | Publication date |
|---|---|
| CN105131655B (en) | 2017-10-24 |
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Effective date of registration: 20210121 Address after: 215400 No. 20, Jian Xiong Road, science and Education Town, Taicang, Suzhou, Jiangsu Patentee after: SUZHOU YUANLUE INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 215400 1 1 Beijing West Road, Taicang Economic Development Zone, Suzhou, Jiangsu. Patentee before: SUZHOU YUXI NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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